.brush-questions-box {
    width: 1200px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px 50px;
    border-radius: 5px;
    display: flex;
    flex-direction: column;
    overflow: auto;
  }
  
  .question-box {
    margin-bottom: 10px;
  }
  
  .question {
    margin-bottom: 20px;
  }
  
  .question-type {
    display: flex;
    align-items: center;
    color: #3c6eee;
    font-size: 16px;
  }
  
  .number {
    width: 35px;
    height: 35px;
    line-height: 35px;
    border-radius: 50%;
    background-color: #3c6eee;
    color: white;
    text-align: center;
    margin-right: 10px;
  }
  
  .type {
    padding: 2px 10px;
  }
  
  .question-content {
    display: flex;
    align-items: center;
    font-size: 16px;
    line-height: 35px;
    margin: 50px 0 10px;
  }
  
  .difficulty {
    margin-right: 10px;
    padding: 0 10px;
    border-radius: 4px;
    background-color: rgba(60, 110, 238, 0.3);
  }
  
  .question-text {
    flex: 1;
  }
  
  .answer-box {
    border-top: 1px dashed #e4e4e4;
    border-bottom: 1px dashed #e4e4e4;
    padding: 20px 0;
  }
  
  .reference-answer {
    color: rgba(60, 110, 238, 0.8);
    font-size: 14px;
    margin-bottom: 10px;
  }
  
  .answer-content {
    background-color: rgba(60, 110, 238, 0.2);
    padding: 15px 35px;
    font-size: 14px;
    line-height: 35px;
    border-radius: 6px;
    max-height: 500px;
    overflow-y: auto;
  }
  
  .change-question-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
  }
  
  .navigation-buttons {
    display: flex;
    gap: 15px;
  }
  
  .prev-button,
  .next-button {
    width: 110px;
    height: 46px;
    font-size: 16px;
    border-radius: 4px;
    transition: all 0.3s;
  }
  
  .prev-button:hover,
  .next-button:hover {
    background-color: #3c6eee;
    color: white;
  }
  
  .pagination-container {
    margin-top: 20px;
    text-align: center;
  }
  
  /* 滚动条样式 */
  .answer-content::-webkit-scrollbar {
    width: 6px;
  }
  
  .answer-content::-webkit-scrollbar-thumb {
    background-color: rgba(60, 110, 238, 0.3);
    border-radius: 3px;
  }
  
  .answer-content::-webkit-scrollbar-track {
    background-color: rgba(60, 110, 238, 0.1);
    border-radius: 3px;
  }